arXiv:hep-ph/0607079·v2·High Energy Physics — Phenomenology
Entropy of expanding QCD matter
Tamas S Biro🇭🇺 · Jozsef Zimanyi (KFKI RMKI Budapest)🇭🇺
Abstract
Using the lattice QCD equation of state for an isentropically expanding fireball we follow the evolution of the effective number of particles in an ideal gas pV/T. This number reduces roughly to its third around the crossover temperature, which helps to circumvent the entropy obstacle inherent in quark coalescence models of the hadronization.
Comments: 5 pages 4 eps figures LaTeX